Ultrasound is currently the main examination method for varicose veins. It is non-invasive, safe, and affordable, making it one of the standard methods for assessing varicose veins. Besides viewing the superficial veins, it also allows visualization of the deformed deep veins within the muscles, enabling a basic assessment of the causes of varicose veins. Ultrasound now plays a crucial role in the treatment of varicose veins. Many new treatment methods, such as blood flow modulation techniques like wrist flexing, require high precision in ultrasound use. It is essential to locate the reflux points using ultrasound, and then specifically target these points for ligation.